360-degree downwind spherical crown device: the application of flagpole technology aims to prevent the red flag from folding or even knotting under downwind and headwind conditions. The device has high design precision, flexible rotation and long service life.
Extended data A: In order to determine the five-star position, the flag surface is first divided into four equal rectangles, and the upper left rectangle is divided into ten equal parts and fifteen equal parts from top to bottom.
B: The center of the big five-pointed star is on the rectangle, down five times, left five times and right ten times.
C: The center point of four small five stars, the first point is on the rectangle, two down eight, left ten right five; The second point is up, down, left and right; The third point is in the first seven, the last three, the left twelve and the right three; The fourth point is up, down, left and right.
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